Temperature-regulator.



No. 818,810. PATENTED APR. 24, 1906. G. BARGAMIN. TEMPERATURE REGULATOR.

APPLICATION FILED APR. 6 1905.

2 SHEETS-SHEET 1.

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No. 818,810. PATENTED APR. 24 1906. G. BARGAMIN.

TEMPERATURE REGULATOR.

APPLICATION FILED APR.6,1905.

2 SHEETS-SHEET 2.

[NZ/151V TOR UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Apr-i124, 1906.

Application filed April 6,1905. Serial No. 254.181.

To all whom it may concern:

Be it known that I, CLIFFORD BARGAMIN, a citizen of the United States, residing at Newport News, in the count of Warwick and State of Virginia, have invented a certain new and useful Temperature-Regulator, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to temperature-regulators, the object of the invention being to provide means adapted to be associated with a boiler, hot-water heater, or urn for containing coffee and the like for maintaining the contents of the vessel or receptacle at a certain or predetermined temperature by controlling the supply of fuel to the burner placed under or adjacent to the vessel containing the liquid.

The invention is especially designed with reference to gas-burners, the invention consisting in the particular means whereby the flow of gas to the burner is regulated or controlled and in some cases entirely out oh by means ofa device associated with the vessel containing the liquid being heated, said de vice serving to actuate suitable connections leading to the supply-pipe which communicates with the gas-burner.

A further object of the invention is to provide means whereby the gascontrolling valve may be set so that it will be caused to open or close partially or wholly at any desired temperature of the liquid in the vessel or receptacle.

A further object of the invention is to provide means for regulating the flow of gas to the burner in accordance with the local gaspressure.

The invention is also adapted for use in connection with hot-water heaters for househeating purposes, such as bath-heaters.

l/Vith the above and other objects in view the invention consists'in the nov Bl construe tion, combination, and arrangement of arts, as hereinafter fully described, illustrate and claimed.

In the accom a perspective view of a bath-boiler, showing a heater associated therewith and also ill'usjtrating the adaptation of the present inven tion thereto. Fig. 2 is a similar view of a coffee-urn, showing the invention applied thereto. Fig. 3 is a horizontal section through Fig. 1. Fig. 4 is a horizontal section through Fig. 2. Fig.5 is an enlarged longitudinalsecpariying drawings, Figure 1 isv tion through the thermostat. Fig. 6 is a similar section through the thermostat, taken at right angles to Fig. 5. Fig. 7 is a vertical longitudinal section through the gas-valve. Fig. 8 is a similar section through the gasvalve, taken at right anglesto Fig. 7 Fig. 9 is a sectional view of the special fitting or branched coupling used in connection with the heater shown in Fig. 1. Fig. 10 is a view in elevation of the special form of gas-valve shown in use in Fig. 2.

Like reference-numerals designate corresponding parts in all the figures.

Referring to the drawings, I have shown in Fig. 1 an ordinary bath-boiler 1, in connection with which'the usual heater 2 is employed, the same being provided with a burner (not shown) fed by a suitable gas supply pipe 3. At a suitable point in the pipe 3 is located a gas-valve embodying a casing 4, having a taperingbore, in which is fitted a plug-valve 5, ground to a taper joint and adapted to be turned by a handle 6, so as to throw the inlet and outlet ports 7 and 8 thereof into and out of register with the pas sage of the supply-pipe 3, thus enabling the gas-supply to be manually turned on and cut off at will. The casing is provided with nipples 7 nd 8 to connect, respectively, with the sgfiply-pipe 3 and the pipe which leads to th main burner. The valve 5 is hollowed out, and a valve-seat 9 is formed between the inlet and outlet ports, as shown in Fig. 7. Cooperating with said valve-seat is an automatic cut-off valve 10, provided with a stem 11, which leads outward through a cap or plug 12, screwed into the upper end of the valve 5, the inner end of said cap or plug serving to clamp a gas-tight diaprahgm 13 against an annular ledge or shoulder 14. The valve-seatin spring 15 serves to hold'the valve norma ly seated. The outer. end of the stem 11 is provided'with a slot 16 to receive one arm of the lever 17, which is fulcrumed on a bracket 18 on the valve-casin 4. The other arm of said lever is provided with an adjustable weight 19, which may be shifted lengthwise of said lever for increasing or de creasing the resistance to the, unseating of the automatic cutofi' valve, and thereby regulate the flow of'gas in accordance with the local gas-pressure. lever is curved or hooked, as shown in 20, for the attachment of oneend of a flexible connection 21, which leads to the temperatur'e valve lever, to be described.

The extremity of the The thermostat (shown best in Figs. 5 and" 6) comprises a casing 22, in which is a mo v able member consisting, preferably, of a ground taper-plug valve 23, which is hollowed out to form an expansion-chamber 24 and provided witha assage or port 25, which may be thrown by handle 26 into or out of line with the passage 27 of a hollow stem 28, which passes through theside wall of the boiler or urn or other liquid-receptacle and is rovided with a hollow enlargement or bulb 29, adapted to containmercury or other liquid which will expand as the liquid in the boiler or u'rn becomes heated. The. expansio'n-chamber 24 is covered and inclosed by a flexible diaphragm 30, from which a 0st 31 extends outward through a cap or p ug 32,

, screwed into the valve'23 and serving to vide for the attachment thereto of the clamp the dia hragm 30 in place. The 0st 31 is provide '-with a slot 33, through w 'ch passes a lever 34, one end of which is ful; crumed on a bracket 35 on the casin .22, the other end of said lever being hooke to roexible connection 21, above referred to. A temerature-regulating weight 36 is adjustable engthwise of the lever 24, so that by setting said weight in or out on the lever greateror less resistance may be given to the movement of the diaphragm 30, and in this way the' mechanism may be set to operate the automatic cut-off valve at any predetermined degree of temperature of the contentsof theboiler, urn, or.other receptacle, the heat'caus ing themercury or other expansive liquid in the bulb 29 to raise or deflect the diaphragm 30, and thereby set in motion the connections which influence and control the gas-supply valve.

The coupling or special fitting (shown in Fig. 9) is attached directly to the boiler 1 and has one arm or branch 37, through which the stem 28 asses, and another branch orv arm 38, Whic leads-to the heater 2.

In Fig. 2 the gas-supply piple 3 is shown 'as arranged, vertically, 1n whic case the gasvalve 4 must be disposed horizontally. Under this arran ement instead of a straight lever, such as shown in Fig. 7 an elbow-lever 39 is employwd, so that the outer portion of the lever may be disposed horizontally to be properly acted on by the flexible connection 21-. In all other-respects. the arrangement is the same as shown in Fig. 1, with the extion, of course, thatnoside heater 2 is em ployed, an ordinary burner being located directly beneath the urn. A pilot-1i ht is sup-- 'lied by means of a pilot-tube 40, vsnch leads om a nipple 41 on the gas-valvecasingto the burner, so thatwhen theg as is cut off from the main burner a small pilot .jet or flame will remain burning and ignite the gas at-the main burner when again turned on.

By means of the construction above de- I scribed the burner takes care of itself, the supply of gas being governed by the temperature of the liquid being heated. Should any accident ha pen, such as the breakage of the mercury bu b or stem, the thermostat can be entirely out off by turning the same through the medium of the handle 26.

Having described the invention, I claimas new-' 1. The combination with a liquid-rece ta.- cle, of a gas-burner, a valve for contro ling the flow of gas to said burner, a lever connected with said valve, a thermostat embodying a casing having a tubular extension which enters .the liquid-receptacle, and a relatively-movable member supported within said casing, said member being. provided with a chamber adapted to be placed incommunication with said tubular extension, a movable diaphragm containedin said chamber,

tively movable 'member, supported within said casing, said member being provided with a chamber adapted to be placed in communication with said tubular extension, a movable diaphragm contained in said chamber, a lever connected with and-actuated by said diaphragm, connection between the two levers, manually-operated means for moving said relatively movable member within saidv casing whereby the chamber of said member A may be placed in communication with said tubular member or cut off therefrom, and

means for varying the degree of resistance to the movement of said diaphragm.

In testimony-whereof I affix my signature. in presence of two witnesses. v

M CLIFFORD BA-RGAMIN. Witnesses: GRA'cE BAYLISS, J. B. CURRY. 

